DOE-2 Reference Manual Version 2.1 - DOE2.com

Again, note that DOE-2 already contains precalculated libraries of thesedata. It is only when the user wishes to have libraries of data that are notin the precalculated sets that he will use this option. Some of the reasonsfor doing this might be as follow:The user intends to make a number of parametric runs of DOE-2 usingthe same MATERIALs and LAYERS, but the MATERIALs and LAYERSavailable in the DOE-2 Library are not appropriate. He cancreate these data in the library, which can then be accessed inrepeated runs of the LOADS program without having to beredefined for each run.The user intends to make a number of parametric runs of DOE-2 usingthe same exterior walls. He can create a library of thesewalls that will include the response factors of the walls, andthereby avoid the time and cost of having SDL recalculate theseresponse factors for every run.The user has a space with large thermal mass, or a building usingpassive solar heating (direct gain); to simulate such conditions,he wishes to use Custom Weighting Factors calculated forthe specific space or building. He can create a library ofthese weighting factors for use in a subsequent INPUT LOADS run.CalculationMethodPrecalculatedWei ghtingFactorsCustomWei ghtingFactors withouta libraryfABLE II 1. 2"INPUT LOADS" ALTERNATl VESRequiredI npu t Steps(a) To run, specifyINPUT LOADS(b) Specify the FLOOR-WEIGHT keyword inthe SPACE-CONDITIONS instructionat s orne val ue gr ea ter th an O.(a) To run, use INPUT LOADS ..OptionsLibraries of MATERIALs andLAYERS (with response factors)may be created for repeated use(b) Specify FLOOR-WEIGHT equal too in the SPACE or SPACE-CONDITIONS instruction.(c) Specify values for SOLAR-FRACTION, ineach wall instruction, and FURNITURE­TYPE, FURN-WEIGHT, and FURN-FRACTION,in the SPACE or SPACE-CONDITIONS instructionto create automatic Custom WeightingFactors (that is, without a 1 ibrary).II1.146 (Revised 5/81)